Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 492 | 459 | 508 | 475 | 485 | 470 |
| Tmin | 501 | 460 | 514 | 503 | 510 | 493 |
| Durata del soleggiamento | 91 | 98 | 103 | 106 | 102 | 104 |
| Precipitazione | 472 | 424 | 468 | 458 | 475 | 452 |
| Umidità/Visibilità | 84 | 85 | 95 | 87 | 81 | 78 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 495 | 509 | 496 | 481 | 483 | 489 |
| Tmin | 504 | 520 | 487 | 480 | 492 | 510 |
| Durata del soleggiamento | 97 | 112 | 96 | 70 | 101 | 103 |
| Precipitazione | 472 | 470 | 455 | 453 | 463 | 477 |
| Umidità/Visibilità | 85 | 88 | 87 | 64 | 78 | 82 |
Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured. |
